Water softener



FIG. 1 is a perspective view of a water softener showing my new design;

FIG. 2 is a front elevation thereof;

FIG. 3 is a left side elevation thereof;

FIG. 4 is a rear elevation thereof;

FIG. 5 is a right side elevation thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; 

The ornamental design for water softener, as shown. 